"She will never learn the most necessary, most difficult and principal thing in music, that is time, because from childhood she has designedly cultivated the habit of ignoring the beat." Letter to Leopold Mozart (24 October 1777)
Not many people have come into the public eye to make a judgment on a event that killed a man so beloved that he played a friend to God, played by George Burns, as a supermarket manager. You cannot put a number on the universality of that kind of adoration.
Imagine, John Lennon, declassified tempo probability chart
The song Imagine by the late John Lennon was recorded with the speed asymptotic to 76 bpm.
When people play this too fast, it has the odd character of sounding sadder.
Hence the surreal oddity of the Frenchman imitating the song in CRUEL irony after a mass gun death during a Western-based harmonies, AFRICAN-BASED RHYTHM show, otherwise known as “popular” and “rock” music concert while playing it so fast it was to some “oddly gauche” (Variety).
I agree with the gauche comment, especially as the fine American composer and performer James Taylor kept his speed below the asymptote of 76 bpm💙